IDEA社区版配置Spring Boot开发

IDEA版本：windows 社区版 2022.1 一、安装完成IDEA 二、新建工程

1. 选择“maven”项目，同时配置JDK目录；
2. 配置POM文件，基本配置如下：

<project xmlns="http://maven.apache.org/POM/4.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0modelVersion>
<groupId>com.demogroupId>
<artifactId>mydemoartifactId>
<version>1.0.0version>
<packaging>pompackaging>
<url>http://maven.apache.orgurl>
<name>mydemoname>
<description>mydemo descriptiondescription>

<parent>
    <groupId>org.springframework.bootgroupId>
    <artifactId>spring-boot-starter-parentartifactId>
    <version>2.6.7version>
    <relativePath/> 
parent>

<properties>
    <project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8project.reporting.outputEncoding>
    <java.version>1.8java.version>
properties>

<dependencies>
    
    <dependency>
        <groupId>org.springframeworkgroupId>
        <artifactId>spring-contextartifactId>
    dependency>
    <dependency>
        <groupId>org.springframework.bootgroupId>
        <artifactId>spring-boot-starter-webartifactId>
        
    dependency>
    
    
    <dependency>
		<groupId>org.springframework.bootgroupId>
        <artifactId>spring-boot-starter-jdbcartifactId>
	dependency>
	<dependency> 
		<groupId>mysqlgroupId>
		<artifactId>mysql-connector-javaartifactId>
	dependency>
	<dependency> 
		<groupId>org.mybatis.spring.bootgroupId>
 		<artifactId>mybatis-spring-boot-starterartifactId>
        <version>2.2.2version>
	dependency>
dependencies>

project>

三、编写启动代码

建个包，新建DemoApp.java

package com.demo;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class DemoApp {
    public static void main(String[] args) {
        SpringApplication.run(DemoApp.class, args);
        System.out.println("DemoApp running ......");
    }
}

四、其他

可以在项目maven配置中配置setting.xml文件和仓库目录，用于改变仓库。
如要更改仓库，可以在setting.xml中找到或在新建"mirrors"（“mirrors”包含在"setting"部分里，setting在最外层）

 <mirrors>
    <id>alimavenid>
    <name>aliyun mavenname>
    <url>https://maven.aliyun.com/nexus/content/groups/public/url>
    <mirrorOf>centralmirrorOf>
mirror>

如果配置了mybatis，pom.xml文件中的

<packaging>pompackaging> 

必须删除掉，否则会导致无法配置resource目录下的.yml文件，造成启动失败。